/// <summary>
/// 发送广播消息
/// </summary>
/// <param name="cmd">消息命令字类型</param>
public void BoardCast(wawCMD cmd)
{
List <byte> bytesource = new List <byte>();
if ((cmd == wawCMD.WAW_BC_ABSENCE) || (cmd == wawCMD.WAW_BC_BUSY) || (cmd == wawCMD.WAW_BC_CHECKNEWVER) || (cmd == wawCMD.WAW_BC_GETLIST) || (cmd == wawCMD.WAW_BC_SIGNIN) || (cmd == wawCMD.WAW_BC_SIGNOUT))
{
bytesource.AddRange(PreDefine.DataHeadPreProcess(cmd));
byte[] sendbuff = bytesource.ToArray();
udpclient.Send(sendbuff, sendbuff.Length, boardcast_ipport);
}
}
/// <summary>
///
/// </summary>
/// <param name="ipendpoint"></param>
/// <param name="txt">要发送的消息文本</param>
public MsgSend(IPEndPoint ipendpoint, wawCMD cmd, string txt)
{
remote_ipport = ipendpoint;
List <byte> bytesource = new List <byte>();
bytesource.AddRange(PreDefine.DataHeadPreProcess(cmd));
bytesource.AddRange(Encoding.UTF8.GetBytes(txt));
sendbuff = bytesource.ToArray();
//也可使用如下方法进行byte数组拼接，一般来讲，对于大byte数组，采用泛型效率要高很多
//byte[] sendbuf = PreDefine.DataHeadPreProcess(cmd).Concat(Encoding.UTF8.GetBytes(txt)).ToArray();
}
public const int WM_COPYDATA = 0x004A; //Windows消息常量值：当一个应用程序传递数据给另一个应用程序时发送此消息
/// <summary>
/// 数据报头部封装
/// </summary>
/// <returns>封装后的字节数组</returns>
public static byte[] DataHeadPreProcess(wawCMD cmd)
{
byte[] datehead_bytes = new byte[128];
try
{
//封装版本号
byte[] ver_bytes = new byte[16];
byte[] temp = new byte[50];//用于处理用户名、主机名的临时字节数组
byte[] vermajor_bytes = BitConverter.GetBytes(InfoSet.Ver.Major);
byte[] verminor_bytes = BitConverter.GetBytes(InfoSet.Ver.Minor);
byte[] verbuild_bytes = BitConverter.GetBytes(InfoSet.Ver.Build);
byte[] verrevision_bytes = BitConverter.GetBytes(InfoSet.Ver.Revision);
Array.Copy(vermajor_bytes, 0, ver_bytes, 0, 4);
Array.Copy(verminor_bytes, 0, ver_bytes, 4, 4);
Array.Copy(verbuild_bytes, 0, ver_bytes, 8, 4);
Array.Copy(verrevision_bytes, 0, ver_bytes, 12, 4);
//封装包编号
byte[] serialnum_bytes = new byte[8];
Array.Copy(BitConverter.GetBytes(DateTime.Now.ToFileTimeUtc()), serialnum_bytes, 8);
//封装用户名
byte[] user_bytes = Enumerable.Repeat((byte)0x0, 50).ToArray();//将用户名数组全部填'\0'
Array.Copy(Encoding.UTF8.GetBytes(InfoSet.User), user_bytes, Encoding.UTF8.GetBytes(InfoSet.User).Length < 50? Encoding.UTF8.GetBytes(InfoSet.User).Length:50);
//封装主机名
byte[] hostname_bytes = Enumerable.Repeat((byte)0x0, 50).ToArray();//将主机名数组全部填'\0'
Array.Copy(Encoding.UTF8.GetBytes(InfoSet.HostName), hostname_bytes, Encoding.UTF8.GetBytes(InfoSet.HostName).Length < 50? Encoding.UTF8.GetBytes(InfoSet.HostName).Length:50);
//封装命令编号
byte[] cmd_bytes = new byte[4];
Array.Copy(BitConverter.GetBytes((uint)cmd), cmd_bytes, 4);
Array.Copy(ver_bytes, 0, datehead_bytes, 0, 16);
Array.Copy(serialnum_bytes, 0, datehead_bytes, 16, 8);
Array.Copy(user_bytes, 0, datehead_bytes, 24, 50);
Array.Copy(hostname_bytes, 0, datehead_bytes, 74, 50);
Array.Copy(cmd_bytes, 0, datehead_bytes, 124, 4);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "数据报头部封装出错");
}
return(datehead_bytes);
}
private void DataConfig(object Sender, MessageEventArgs e)
{
byte[] ver_bytes = new byte[16];
byte[] serialnum_bytes = new byte[8];
byte[] user_bytes = new byte[50];
byte[] hostname_bytes = new byte[50];
byte[] cmd_bytes = new byte[4];
string user = string.Empty;
string hostname = string.Empty;
string msgstr = string.Empty;
MsgDistribute distri = null;
IPEndPoint remote_ipend = e.remoteIP;
byte[] rec_buff = e.buffer;
Array.Copy(rec_buff, 0, ver_bytes, 0, 16);
Array.Copy(rec_buff, 16, serialnum_bytes, 0, 8);
Array.Copy(rec_buff, 24, user_bytes, 0, 50);
Array.Copy(rec_buff, 74, hostname_bytes, 0, 50);
Array.Copy(rec_buff, 124, cmd_bytes, 0, 4);
wawCMD cmd = (wawCMD)BitConverter.ToUInt32(cmd_bytes, 0);
List <byte> bytesource = rec_buff.ToList();
bytesource.RemoveRange(0, 128);
byte[] message = bytesource.ToArray();
user = Encoding.UTF8.GetString(user_bytes);
hostname = Encoding.UTF8.GetString(hostname_bytes);
msgstr = Encoding.UTF8.GetString(message);
//是否为广播消息
if ((cmd == wawCMD.WAW_BC_ABSENCE) ||
(cmd == wawCMD.WAW_BC_BUSY) ||
(cmd == wawCMD.WAW_BC_CHECKNEWVER) ||
(cmd == wawCMD.WAW_BC_GETLIST) ||
(cmd == wawCMD.WAW_BC_SIGNIN) ||
(cmd == wawCMD.WAW_BC_SIGNOUT))
{
switch (cmd)
{
case wawCMD.WAW_BC_ABSENCE:
break;
case wawCMD.WAW_BC_BUSY:
break;
case wawCMD.WAW_BC_CHECKNEWVER:
break;
case wawCMD.WAW_BC_GETLIST:
try
{
ListViewItem item = new ListViewItem();
ListViewItem.ListViewSubItem subitem_user = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_ip = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_hostname = new ListViewItem.ListViewSubItem();
subitem_user.Text = Encoding.UTF8.GetString(user_bytes);//此为第二列，listviewitem的名称显示在第一列
subitem_ip.Text = remote_ipend.Address.ToString();
subitem_hostname.Text = Encoding.UTF8.GetString(hostname_bytes);
item.SubItems.Add(subitem_user);
item.SubItems.Add(subitem_ip);
item.SubItems.Add(subitem_hostname);
item.Tag = (object)wawState.SignIn; //存储用户当前状态
UserlistUpdate(item, 1);
UserCountUpdate();
//回复消息
MsgSend signinreply = new MsgSend(remote_ipend, wawCMD.WAW_SENDSTATE, frmMain.Userstate.ToString());
signinreply.Send();
signinreply.SendClose();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "消息接收处理WAW_BC_GETLIST出错");
}
break;
case wawCMD.WAW_BC_SIGNIN:
try
{
ListViewItem item = new ListViewItem();
ListViewItem.ListViewSubItem subitem_user = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_ip = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_hostname = new ListViewItem.ListViewSubItem();
subitem_user.Text = Encoding.UTF8.GetString(user_bytes);//此为第二列，listviewitem的名称显示在第一列
subitem_ip.Text = remote_ipend.Address.ToString();
subitem_hostname.Text = Encoding.UTF8.GetString(hostname_bytes);
item.SubItems.Add(subitem_user);
item.SubItems.Add(subitem_ip);
item.SubItems.Add(subitem_hostname);
item.Tag = (object)wawState.SignIn; //存储用户当前状态
UserlistUpdate(item, 1);
UserCountUpdate();
//回复消息
MsgSend signinreply = new MsgSend(remote_ipend, wawCMD.WAW_SENDSTATE, frmMain.Userstate.ToString());
signinreply.Send();
signinreply.SendClose();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "消息接收处理WAW_BC_SIGNIN出错");
}
break;
case wawCMD.WAW_BC_SIGNOUT:
try
{
ListViewItem item = new ListViewItem();
ListViewItem.ListViewSubItem subitem_user = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_ip = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_hostname = new ListViewItem.ListViewSubItem();
subitem_user.Text = Encoding.UTF8.GetString(user_bytes);
subitem_ip.Text = remote_ipend.Address.ToString();
subitem_hostname.Text = Encoding.UTF8.GetString(hostname_bytes);
item.SubItems.Add(subitem_user);
item.SubItems.Add(subitem_ip);
item.SubItems.Add(subitem_hostname);
UserlistUpdate(item, 2);
UserCountUpdate();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "消息接收处理WAW_BC_SIGNOUT出错");
}
break;
default:
break;
}
}
else//非广播消息处理
{
switch (cmd)
{
case wawCMD.WAW_SENDSTATE:
try
{
ListViewItem item = new ListViewItem();
ListViewItem.ListViewSubItem subitem_user = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_ip = new ListViewItem.ListViewSubItem();
ListViewItem.ListViewSubItem subitem_hostname = new ListViewItem.ListViewSubItem();
subitem_user.Text = Encoding.UTF8.GetString(user_bytes);
subitem_ip.Text = remote_ipend.Address.ToString();
subitem_hostname.Text = Encoding.UTF8.GetString(hostname_bytes);
item.SubItems.Add(subitem_user);
item.SubItems.Add(subitem_ip);
item.SubItems.Add(subitem_hostname);
switch (Encoding.UTF8.GetString(message))
{
case "SignIn":
item.Tag = (object)wawState.SignIn;
break;
case "Absence":
item.Tag = (object)wawState.Absence;
break;
case "Busy":
item.Tag = (object)wawState.Busy;
break;
default:
break;
}
UserlistUpdate(item, 1);
UserCountUpdate();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "消息接收处理WAW_SENDSTATE出错");
}
break;
case wawCMD.WAW_GETNEWVER:
break;
case wawCMD.WAW_GETNEWVER_ACCEPT:
break;
case wawCMD.WAW_INPUTING:
break;
case wawCMD.WAW_MSGDISCARD:
break;
case wawCMD.WAW_MSGRECVD:
break;
case wawCMD.WAW_MULTICAST:
break;
case wawCMD.WAW_NOOPERATION:
break;
case wawCMD.WAW_SENDFILEDATA:
break;
case wawCMD.WAW_SENDFILEDATA_ACCEPT:
break;
case wawCMD.WAW_SENDFILEDATA_CANCEL:
break;
case wawCMD.WAW_SENDFILEDATA_REFUSE:
break;
case wawCMD.WAW_SENDFILEDATA_STOP:
break;
case wawCMD.WAW_SENDMSG:
distri = new MsgDistribute(remote_ipend.Address.ToString(), user, hostname, msgstr);
Thread threadDistribute = new Thread(new ThreadStart(distri.DistributeToChatForm));
threadDistribute.IsBackground = true;
threadDistribute.Start();
break;
default:
break;
}
}
}
